Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Reverse Band Servo Assemble
2008 Chevrolet Uplander V6-3.9LSECTION Reverse Band Servo Assemble
Reverse Band Servo Assemble
1. Inspect the reverse band servo components for the following conditions:
* Damaged, worn or porous servo piston (44)
* Damaged servo piston oil seal ring (43)
* Damaged, worn or porous servo cover (40)
* Damaged servo cover O-ring seal (41)
* Damaged servo cover retaining ring (39)
* Broken or collapsed servo piston return spring (49)
* Broken or collapsed servo piston cushion springs (45, 47)
* Damaged or worn servo piston apply pin (48)
2. Assemble the servo piston (44), the servo piston cushion springs (45, 47), the servo piston cushion spring retainer (46) and the servo piston apply pin (48).
3. Install the servo pin retaining ring (42) onto the servo piston apply pin (48).
4. Install the servo piston oil seal ring (43) onto the servo piston (44).
5. Assemble the servo piston return spring (49) onto the servo assembly.
6. Position the transmission so that the oil pan is facing down.
7. Install the servo cover O-ring seal (41) onto the servo cover (40).
8. Install the servo and cover assembly (40-49) into the case.
9. Use a long screwdriver in order to depress the reverse band servo cover (40) by prying against the transmission holding fixture.
10. Hold the reverse band servo assembly compressed.
11. Use a small screwdriver in order to install the reverse band servo cover retaining ring (39).
12. Remove the long screwdriver.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.